Camera Module Dual Movable Lens and Sensor Assembly Vibration Compensation

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Solution Overview

Problem

Existing optical image stabilization systems for small devices, such as mobile phones, face limitations due to dimension constraints, which restrict the effectiveness of image stabilization and lead to image blur caused by camera vibration.

Innovation Solution

A camera module with a movable lens assembly and sensor assembly, driven by a control signal through a driving assembly, allowing for various positional relationships and adaptive movement to enhance image stabilization and focusing capabilities.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If sensor movement image stabilization is used in small devices, then the device size is reduced, but the image stabilization space is significantly restricted

Engineering Contradiction:
Improvedevice sizeVSAvoidimage stabilization space
Core Design Contradiction:
Volume of moving objectVSArea of stationary object

Solution Approach 1:

The patent divides the image stabilization function into two independent movable components: the lens assembly and the sensor assembly. Each component can move separately to compensate for vibration, effectively doubling the stabilization capability within the same compact space, thus resolving the contradiction between small device size and sufficient stabilization space.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent utilizes both the horizontal plane (for vibration compensation) and the vertical direction (for focusing and depth of field adjustment) of the lens assembly and sensor assembly movements. This multi-dimensional movement capability maximizes the utilization of limited internal space while providing comprehensive image stabilization and focusing functions.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Device complexity

If only sensor assembly moves for image stabilization, then the structure is simple, but the image stabilization effect is limited

Engineering Contradiction:
Improvestructure complexityVSAvoidimage stabilization effect
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent segments the image stabilization function between two independently movable components: the lens assembly and the sensor assembly. Each component has its own driving assembly that can operate independently or cooperatively, providing enhanced stabilization effect while maintaining relatively simple individual structures that are easy to manufacture and control.

Inventive Principle:
Principle #1Segmentation

3Adaptability or versatility

If lens assembly and sensor assembly move separately, then more positional relationships can be formed, but the control complexity increases

Engineering Contradiction:
Improvepositional relationship varietyVSAvoidcontrol complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements dynamic control where the lens assembly and sensor assembly can move independently or cooperatively based on real-time imaging requirements. The control system dynamically adjusts the movement of each component to achieve various positional relationships for different shooting scenarios (such as portrait mode, landscape mode, macro photography), providing high adaptability while managing control complexity through coordinated movement algorithms.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS12126904B2Camera module, information processing method, and electronic device for image stabilization control
Publication Date: 2024.10.22 LENOVO (BEIJING) LTD
  • US12126904B2 patent drawing
  • US12126904B2 patent drawing
  • US12126904B2 patent drawing

AI summary

The present disclosure provides a camera module, an information processing method, and an electronic device. The camera module includes a casing and a lens assembly movably connected to the casing. The lens assembly includes a lens group including a plurality of lenses, and the lens group is fixedly arranged in a lens barrel. The camera module further includes a sensor assembly movably connected to the casing. The sensor assembly is located under the lens assembly. The camera module also includes a driving assembly, which drives the lens assembly and/or the sensor assembly to move based on a control signal.